Locked surface pin



0. KARTZMARK.

LOCKED SURFACE PIN.

APPLICATION FILED OCT. 24, 1919.

1,371,901 Patented Mar. 15, 1921.

A TTUR/VEYS OTTO KABTZMARK, OF NEW HAVEN, CONNECTICUT.

LOCKED SURFACE PIN.

I Specification of Letters Patent. I Patented Ma l. 15, 1921.

Application filed October 24, 1919. Serial No. 332,857.

T 0 all whom it may concern Be it known that I, OTTO KARTZMARK, acitizen. of the United States, and a resident of NewHaven, in the countyof New Haven and State of Connecticut, have invented a new and ImprovedLocked Surface Pin, of which the following is a full, clear, and exactdescription.

This invention relates to buckles or clasps and has particular referenceto pins or buckles adapted to be detachably secured d1- rectly to thesurface of a garment, fabrlc or the like with an action somewhat similarto that of a cats claws. Y

Another object of the invention is to provide a pin for easy attachmentto or removal from the surface of a garment or fabric, the manipulationof the pin being readily effected by one hand,-and after the device isattached it occupies but a minimum amount of room and is'consequentlyneat in appearance and comfortable to the person.

A. still further-object of the invention is to provide an improved pinor clasp for the attachment of elastic straps, han ers, or the like, forsleeve or hose supporters or other analogous uses.

With the foregoing and other objects in view the invention consistsinthe arrangement and combination of parts hereinafter described andclaimed, and while the invention is not restricted to the exact. detailsof construction disclosed or suggested herein, still for the purpose ofillustrating a practical embodiment thereof reference is had to theaccompanying drawings, in which like reference characters designate thesame parts in the several views, and in which- Figure 1 is a plan orface view of one adaptation of my invention shown attached to twodifferent garments or two remoteportions of thesame garment.

Fig. 2 is an enlarged longitudinal section on the line 2-2 of Fig. 1.

V Fig. 3 is a'horizontal section on the line 3- 3 of Fig. 2; I b

Fig. & is a similar view on the line 4-4: of Fig. 2. f

Fig. 5 is a sectional detall' onthe line 5-5 of Fig. 8.

Figs. 6 and 7 are plan views of the blanks for the bodies or shells ofthe pins of Figs. 3 and l respectively.

Referring now more specifically to the drawings I show my invention ascomprising two pins 10 and 10 connected by a strap 11 which ispreferably of elastic webbing or the like but which per so has noparticular bearing upon my improvement which relates to the form of thepin or clasp. In other words so far as the strap 11 is concerned anyother sort ortype of means might be attached to either of the pins. Thisillustration, however, is adopted as suitable for illustrating theutility of my improvement as a sleeveor hose supporter.

The'pin 10 comprises a shell or body 12 formed preferably from a singleblank of sheet material such as a good quality of tin or the likestamped in the form shown in Fig. 6 and provided 'with'integral bearingears 13 at the ends of the body, each having a bearing hole 14 Betweenthe ends are provided a pair of spaced slots 15 the main portions ofwhich are parallel to each other and extend across the longitudinalcenter of the body while the outer ends thereof are bent laterallyforming shoulders 16 Along the side of the body opposite the shoulders16 is formed a bar 17 as by slitting the blank at 18 and bending themetal outward forming'a rounded edge over which the webbing or the likeis looped at 11 whereby the tendency for the sheet material of which thebodyis made tocut the webbing is reduced to a minimum. The blank thusformed is then cupped or dished on what becomes the inner side as shownplainly in Fig.2 so as to constitute a housing for the movable clawmembers and the ears 13 are bent inward so'as to lie adjacent to the endportions of the flange constituting the rim .of the body. (See Fig. Saidrim is unbroken at these parts and the position of the ears ada'pts'themin a as will appear peculiar manner as bearings presently. V

In the pin 1O I show a claw device comprising an axle 19 in which arefitted rigidly a plurality of spaced claws 20 and 21. Ob- I viously inpractice I do not propose to be limited to any particular number,arrangement or designof these claws,'but inmy experience I have foundthe use of four, or two of eachkind, is very satisfactory. The claws 20might be described as being madefrom headed pins, the portion of eachintermediate the head and the point being bent at two angles at 22 and23, the portion 2 1 between the angles coinciding with the axis of theaxle 19 while the portions lead :7

ing outward from said axle emerge from the axle on diametricallyopposite sides or approximately so. The portion 25 of each of theseclaws 20 may be regarded as a finger piece and operates in a slot 15.The angle at 22 is slightly greater than a right angle so that thenormal tendency of the finger piece portion 25 is to spring laterally soas to snap behind the shoulder 16 when the pin or clasp is set andwhereby the claws are locked from movement from closed to open position.The point or prong portion of each of the claws is bent to approximate asemicircle so that when the pin is open as indicated in dotted-lines inFig. 2 the points of the prongs will readily grasp into a garment orfabric, the finger pieces at this time being against the closed innerends of the slots 15 preventing the swinging of the prongs too fararound their axis. After the points are thus engaged with the garment orfabric a slight pressure from the operators fingers upon the body 12thereof will bring it directly into firm contact with the surface of thegarment and while the pin is thus held the operator will bear upon thefinger pieces and swing them aroundinto flat position, as in Fig. 2,causing thereby the points of the prongs to project twice through thefabric, once through the holes entered first by the points at 26, andsecondly through the holes 27. The points of the prongs atthis timewillcome close to the inner surface of the. body or shell 12, and with thefinger pieces locked behind the shoulders 16 where they are heldtemporarily due to the resiliency of the pin members there is nopossibility for the device to be inadvertently or accidentally detachedfrom the garment. I wish to call in this connec tion particularattention to the fact that the strain brought to bear upon the device asa result of a pull upon the strap 11, or its equivalent, applied to thebar 17 is resisted by the garment. G at twospaced points for each prongand moreover such strain upon the fabric tends to draw it away from thepoints of the prongs and toward the axle, whereas in the usual types ofbuckles with which I am familiar the tendency is for the garment orfabric to be drawn toward the points of the pins or prongs.v It is to benoted also that afterthe device is attached as shown the points of theprongs are well guarded both from damage to themselves and injury to theperson, and the device as a whole presents a flat, neat appearance andpossesses maximum strength.

The two claws 20 are those whichhave the finger pieces25 andthey are soarranged with respect to the slots 15 and shoulders as to facilitate therelease of the device in the easiest manner, that is to say to releasethe device from the garment the operator presses the outer or headedends of the members toward each other between his thumb and fingercausing the releasing simultaneously thereof from the shoulders and thesubsequent swinging thereof back to open position. This manual movementof the claws causes the direct release of the prongs from the garmentwith the least possible likelihood of breaking any of the threads of thegarment.

The pins or claws 21 "serve exactly the same manner as the others forthe cooperation with the garment, but these pins are bent at 30 formingin addition to the prongs only straight axial portions 31 which projectbeyond the axle 19 for cooperation with the holes 14 'of the ears 13 asbearings. With the body formed as above described and with the ears13bent inward the claw and axle portion will then be inserted as a unit,one trunnion 31 being slipped first into one of the holes 14 and thenthe other trunnion will be snapped into the other hole 14: making notonly a positive and permanent attachment means for the axle and-clawsbutalso a construction in which the exterior of the pin as a whole is neat,smooth and unbroken,

The pin 10 differs but slightly from pin 10, the body 12 thereof beingthe same as the other except that a single slot 15 is provided at thelongitudinalcenter of the body but wide enough to accommodate two clawstogether, and the shoulders 16 are formed at the outer end of the sameslot, but their function is exactly the same as above described. Theaxle 19 is substantiallythe same as the axle 19 but the prongs 20 arebent toward each other. at 23 instead of in the opposite direction sothat the finger piece portions 25 thereof lie and operate in closeproximity to each other in the slot 15. The prongs 21 are shown as beingthe same as already set forth and with their trunnion portions 31cooperatingwith the bearing ears 13. The manipulation of this pin ispractically the same as already set forth.

Iclaim:

1. In a device of the class set forth, a pin comprising a body, a clawmember pivoted therein and hanger means attached tothe body, the prongportion of the claw means being projectable through a garment or fabrictoward the hanger means,.and means integral with therclaw member to lockthe claw member from movement. r

2. The herein described pin comprising a hollow body, claw meansjournaled within the body and comprising a plurality of prongsextendible through a garment toward one side of the body, and draft;means attached to the body adj acent' to the points of the prongs. 1 1

3. In a pin of the class set forth, the combination of a body, a clawdevice journaled within the body and including a plurality of prongs ofcircular arc shape, the points of axis thereof, a claw journaled withinthe body, said claw comprising a prong and means to move the prongaround the axis of the claw, said moving means including a membermovable along the slot aforesaid, and means to lock the movable meansfrom movement from locked position.

5. In a surface pin, the combination of a slotted body, a claw journaledwithin the body and having one or more are shaped prongs adapted to beprojected through a fabric and finger means movable along the slottedportion of the body to cause the projection of the points through thefabric, and a pair of spaced shoulders through which the finger meanscooperates to lock the claw in holding position.

6. In a device of the class set forth, the

combination with a hollow body, an axle j ournaled therein and aplurality of prongs connected to the axle, two of said prongs serving astrunnions for the axle, and finger pieces for manipulating the prongsextending from the remaining prongs and cooperating with the body,substantially as set forth.

7 In a device of the class set forth, the combination of a body, an axlejournaled therein, and a plurality of prongs fixed to the axle andprojecting from opposite sides thereof, each of the prongs projectingfrom the axle at different distances from the ends of the axle, one endof each prong being sharpened and the other constituting a finger piecefor manipulation and locking thereof.

8. In a device of the class set forth, the combinationof a sheet metalbody having a concavity on one side and a pair of end ears integraltherewith, said ears being formed with hearing holes and extendinginward to lie within the body, and prong means having end trunnionssnapped into said ears.

OTTO KARTZMARK.

